How long does it take to fly to Islip, New York?

The flight from Colorado to Islip, New York depends on which airports you’re departing and arriving from and whether or not you have a layover. If you fly from Denver (a popular airport in Colorado) to New York John F Kennedy Intl Airport (the most popular airport in Islip, New York), then the flight time is 3h 37m on average. If you fly from Colorado Springs (another popular airport in Colorado) to New York John F Kennedy Intl Airport, then the average flight time is 6h 26m.

What is the cheapest airline that flies from Colorado to Islip Long Island?

Frontier and Southwest are the most popular carriers operating from Colorado to Islip Long Island

What airlines fly to Islip, New York?

United Airlines, Delta and Southwest are the top three most popular airlines that fly to Islip, New York from Colorado according to our data. United Airlines is the first choice among our users, with 60% of people opting to fly with this airline when traveling to Islip, New York. Keep in mind that there are 6 different airlines that fly to Islip, New York on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Colorado to Islip Long Island Airport?

Prices for flights from Colorado to Islip Long Island Airport are updated daily.

How many operators does momondo search for flights from Colorado to Islip Long Island Airport?

There is 1 operator available for flights from Colorado to Islip Long Island Airport as of September 2026.

How old do you have to be to fly from Colorado to Islip Long Island Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Colorado to Islip Long Island Airport.

What documentation or ID do you need to fly to Islip Long Island Airport?

The necessary travel and health documents for your Islip Long Island Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$179 Cheap Flights from Colorado to Islip, New York in 2026/27

Find the cheapest flights from Colorado to New York

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

1:18 pm - 11:20 amDEN Denver Intl-ISP Islip Long Island

20h 02m1 stop Raleigh-Durham

12:00 pm - 9:32 pmISP Islip Long Island-DEN Denver Intl

11h 32m2 stops Raleigh-Durham Atlanta Hartsfield-Jackson

$305Multiple Airlines

Mon, Nov 9 - Tue, Nov 17

1:18 pm - 11:20 amDEN Denver Intl-ISP Islip Long Island

20h 02m1 stop Raleigh-Durham

12:00 pm - 10:04 pmISP Islip Long Island-DEN Denver Intl

12h 04m2 stops Raleigh-Durham Detroit Metropolitan Wayne County

$307Multiple Airlines

Mon, Nov 9 - Wed, Nov 11

1:18 pm - 11:20 amDEN Denver Intl-ISP Islip Long Island

20h 02m1 stop Raleigh-Durham

12:00 pm - 7:30 pmISP Islip Long Island-DEN Denver Intl

9h 30m1 stop Raleigh-Durham

$308Multiple Airlines

Mon, Nov 9 - Sat, Nov 14

1:18 pm - 11:20 amDEN Denver Intl-ISP Islip Long Island

20h 02m1 stop Raleigh-Durham

12:00 pm - 8:46 pmISP Islip Long Island-DEN Denver Intl

10h 46m1 stop Raleigh-Durham

$308Multiple Airlines

Mon, Nov 9 - Wed, Nov 11

1:18 pm - 11:20 amDEN Denver Intl-ISP Islip Long Island

20h 02m1 stop Raleigh-Durham

3:02 pm - 9:47 pmISP Islip Long Island-DEN Denver Intl

8h 45m1 stop Raleigh-Durham

$308Multiple Airlines

Mon, Nov 9 - Mon, Nov 16

6:31 pm - 2:22 pmDEN Denver Intl-ISP Islip Long Island

41h 51m2 stops Atlanta Hartsfield-Jackson Raleigh-Durham

3:02 pm - 9:47 pmISP Islip Long Island-DEN Denver Intl

8h 45m1 stop Raleigh-Durham

$312Multiple Airlines

Wed, Nov 11 - Mon, Nov 16

12:18 pm - 10:17 amDEN Denver Intl-ISP Islip Long Island

19h 59m1 stop Raleigh-Durham

12:00 pm - 9:32 pmISP Islip Long Island-DEN Denver Intl

11h 32m2 stops Raleigh-Durham Atlanta Hartsfield-Jackson

$313Multiple Airlines

Wed, Nov 11 - Tue, Nov 17

10:48 am - 10:17 amDEN Denver Intl-ISP Islip Long Island

21h 29m2 stops Detroit Metropolitan Wayne County Raleigh-Durham

12:00 pm - 7:30 pmISP Islip Long Island-DEN Denver Intl

9h 30m1 stop Raleigh-Durham

$314Multiple Airlines

Wed, Nov 11 - Sat, Nov 14

11:55 pm - 3:05 pmDEN Denver Intl-ISP Islip Long Island

13h 10m2 stops Orlando West Palm Beach President Donald J. Trump Intl

6:05 am - 1:30 pmISP Islip Long Island-DEN Denver Intl

9h 25m2 stops Baltimore/Washington Nashville Intl

$413Southwest

Fri, Oct 23 - Tue, Oct 27

1:45 pm - 11:35 pmDEN Denver Intl-ISP Islip Long Island

7h 50m2 stops Jacksonville Baltimore/Washington

12:45 pm - 9:30 pmISP Islip Long Island-DEN Denver Intl

10h 45m2 stops Baltimore/Washington Houston Hobby

$451Southwest

Mon, Nov 9 - Sat, Nov 14

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Southwest flights from Colorado to Islip, New York

Our best Southwest deals on Colorado to Islip, New York flight tickets

Southwest

Oct 23

DEN11:55 pmDenver Intl

13h 10m

2 stops

ISP3:05 pmIslip Long Island

Oct 27

ISP6:05 amIslip Long Island

9h 25m

2 stops

DEN1:30 pmDenver Intl

$413

Southwest

Oct 23

DEN11:55 pmDenver Intl

9h 45m

1 stop

ISP11:40 amIslip Long Island

Oct 27

ISP4:20 pmIslip Long Island

8h 20m

1 stop

DEN10:40 pmDenver Intl

$451

Southwest

Oct 8

DEN5:50 amDenver Intl

9h 10m

2 stops

ISP5:00 pmIslip Long Island

Oct 11

ISP5:40 amIslip Long Island

5h 55m

1 stop

DEN9:35 amDenver Intl

$598

Frontier flights from Colorado to Islip, New York

Our best Frontier deals on Colorado to Islip, New York flight tickets

Frontier

Oct 23

DEN6:40 amDenver Intl

9h 20m

1 stop

ISP6:00 pmIslip Long Island

Oct 26

ISP6:55 pmIslip Long Island

15h 18m

1 stop

DEN8:13 amDenver Intl

$358

Frontier

Oct 22

DEN6:40 amDenver Intl

8h 50m

1 stop

ISP5:30 pmIslip Long Island

Oct 26

ISP6:55 pmIslip Long Island

15h 18m

1 stop

DEN8:13 amDenver Intl

$370

Frontier

Oct 7

DEN7:12 pmDenver Intl

20h 18m

1 stop

ISP5:30 pmIslip Long Island

Oct 11

ISP6:25 pmIslip Long Island

27h 35m

1 stop

DEN8:00 pmDenver Intl

$404

momondo Fare Finder

Use the filters below to find and compare flights from Colorado to Islip, New York that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DenverIslip

DEN Denver Intl - ISP Islip Long Island

DENISP

Denver Intl

Mon 11/9

1:18 pm-11:20 am

1 stop20h 02m

Islip Long Island

Tue 11/17

12:00 pm-9:32 pm

2 stops11h 32m

$305

DenverIslip

DEN Denver Intl - ISP Islip Long Island

DENISP

Denver Intl

Mon 11/9

1:18 pm-11:20 am

1 stop20h 02m

Islip Long Island

Wed 11/11

12:00 pm-10:04 pm

2 stops12h 04m

$307

DenverIslip

DEN Denver Intl - ISP Islip Long Island

DENISP

Denver Intl

Mon 11/9

1:18 pm-11:20 am

1 stop20h 02m

Islip Long Island

Sat 11/14

12:00 pm-7:30 pm

1 stop9h 30m

$308

DenverIslip

DEN Denver Intl - ISP Islip Long Island

DENISP

Denver Intl

Mon 11/9

1:18 pm-11:20 am

1 stop20h 02m

Islip Long Island

Wed 11/11

12:00 pm-8:46 pm

1 stop10h 46m

$308

DenverIslip

DEN Denver Intl - ISP Islip Long Island

DENISP

Denver Intl

Mon 11/9

1:18 pm-11:20 am

1 stop20h 02m

Islip Long Island

Mon 11/16

3:02 pm-9:47 pm

1 stop8h 45m

$308

DenverIslip

DEN Denver Intl - ISP Islip Long Island

DENISP

Denver Intl

Wed 11/11

6:31 pm-2:22 pm

2 stops41h 51m

Islip Long Island

Mon 11/16

3:02 pm-9:47 pm

1 stop8h 45m

$312

DenverIslip

DEN Denver Intl - ISP Islip Long Island

DENISP

Denver Intl

Wed 11/11

12:18 pm-10:17 am

1 stop19h 59m

Islip Long Island

Tue 11/17

12:00 pm-9:32 pm

2 stops11h 32m

$313

DenverIslip

DEN Denver Intl - ISP Islip Long Island

DENISP

Denver Intl

Wed 11/11

10:48 am-10:17 am

2 stops21h 29m

Islip Long Island

Sat 11/14

12:00 pm-7:30 pm

1 stop9h 30m

$314

DenverIslip

DEN Denver Intl - ISP Islip Long Island

DENISP

Denver Intl

Fri 10/23

11:55 pm-3:05 pm

2 stops13h 10m

Islip Long Island

Tue 10/27

6:05 am-1:30 pm

2 stops9h 25m

$413

Quickest round-trip

DenverIslip

DEN Denver Intl - ISP Islip Long Island

DENISP

Denver Intl

Mon 11/9

1:45 pm-11:35 pm

2 stops7h 50m

Islip Long Island

Sat 11/14

12:45 pm-9:30 pm

2 stops10h 45m

$451

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Colorado to Islip, New York

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Islip, New York?

The month of November is, on average, the cheapest month to fly to Islip, New York from Colorado, with most prices found around $0. If you aren’t able to travel to Islip, New York during the month of November, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $0.

Can stopping save me money on Colorado to Islip, New York flights?

You could potentially save up to 30% on your flight if you consider stops on a Colorado to Islip, New York flight.

Cheap Colorado to Islip, New York flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Colorado to Islip, New York

Best Price Found	$179
Fastest flight time	9h 20m
Direct flights	None

The best one-way flight to Islip, New York from Colorado in the past 72 hours is $179. The best round-trip flight deal from Colorado to Islip, New York found on momondo in the last 72 hours is $305.

The fastest flight from Colorado to Islip, New York takes 9h 20m

There are no direct flights from Colorado to Islip, New York. There are no popular flight routes from Colorado to Islip, New York.

Search flight deals

Frequently asked questions about flying from Colorado to Islip, New York

When did momondo last update prices for flights from Colorado to Islip Long Island Airport?
Prices for flights from Colorado to Islip Long Island Airport are updated daily.
How many operators does momondo search for flights from Colorado to Islip Long Island Airport?
There is 1 operator available for flights from Colorado to Islip Long Island Airport as of September 2026.
How old do you have to be to fly from Colorado to Islip Long Island Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Colorado to Islip Long Island Airport.
What documentation or ID do you need to fly to Islip Long Island Airport?
The necessary travel and health documents for your Islip Long Island Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Colorado to Islip, New York

Compare and see reviews for airlines that fly from Colorado to Islip, New York with momondo

Airline	Rating	Free Cancellation	Price
Southwest	PriceFrom $383	Free Cancellation	Rating 8.0 4,200 reviews		Search Southwest flights

Montauk

Riverhead

Southampton

Amagansett

Sag Harbor

Why use momondo?

Why should I use momondo to find a flight deal from Colorado to Islip?

It is quick and easy to find Colorado to Islip flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Islip that suits you.

Can I find flights from Colorado to Islip with flexible booking policies on momondo?

momondo does allow users to show only those flights to Islip from Colorado which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Colorado to Islip?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Islip from Colorado.

I’m not ready to book a flight from Colorado to Islip right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Colorado to Islip now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Islip and let you know when they change.

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Cheap flights from Colorado to New York from $179

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Colorado to New York departing on 10/30. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Southwest flights from Colorado to Islip, New York

Our best Southwest deals on Colorado to Islip, New York flight tickets

Frontier flights from Colorado to Islip, New York

Our best Frontier deals on Colorado to Islip, New York flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Colorado to Islip, New York that are best for you.

See travel insights to New York from

How to get the cheapest flight ticket from Colorado to Islip, New York

What is the cheapest month to fly to Islip, New York?

Can stopping save me money on Colorado to Islip, New York flights?

What is the cheapest airline that flies from Colorado to Islip Long Island?

What airlines fly to Islip, New York?

How long does it take to fly to Islip, New York?

Cheap Colorado to Islip, New York flight deals and tips

Best Price Found

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Frequently asked questions about flying from Colorado to Islip, New York

Best airlines flying from Colorado to Islip, New York

Compare and see reviews for airlines that fly from Colorado to Islip, New York with momondo

Traveling to a place near New York?

Why use momondo?

An easier way to manage your Islip, New York trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

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